Eliminate sending NOTIFICATION_HISTORY_KEYWORD_SEARCH_TERM_DELETED

components/history/core/browser/history_service_observer.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_SERVICE_OBSERVER_H_
 #define COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_SERVICE_OBSERVER_H_
 
 #include "base/macros.h"
 #include "components/history/core/browser/history_types.h"
 #include "components/history/core/browser/keyword_id.h"
@@ skipping 40 matching lines @@
 
   // Sent when a keyword search term is updated.
   //
   // |row| contains the URL information for search |term|.
   // |keyword_id| associated with a URL and search term.
   virtual void OnKeywordSearchTermUpdated(HistoryService* history_service,
                                           const URLRow& row,
                                           KeywordID keyword_id,
                                           const base::string16& term) {}
 
+  // Sent when a keyword search term is deleted.
+  //
+  // |url_id| id of the url row.

[sdefresne, 2015/01/16 06:56:00]

Style: comment must be correct english sentences

// Sent when a keyword search term is deleted.
// |url_id| is the id of the URL row.

[Abhishek, 2015/01/16 07:43:48]

Done.

+  virtual void OnKeywordSearchTermDeleted(HistoryService* history_service,
+                                          URLID url_id) {}
+
  private:
   DISALLOW_COPY_AND_ASSIGN(HistoryServiceObserver);
 };
 
 }  // namespace history
 
 #endif  // COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_SERVICE_OBSERVER_H_